EP1747043A4 - Matrice d'interface bio-electro-physiologique implantable - Google Patents

Matrice d'interface bio-electro-physiologique implantable

Info

Publication number
EP1747043A4
EP1747043A4 EP05745286A EP05745286A EP1747043A4 EP 1747043 A4 EP1747043 A4 EP 1747043A4 EP 05745286 A EP05745286 A EP 05745286A EP 05745286 A EP05745286 A EP 05745286A EP 1747043 A4 EP1747043 A4 EP 1747043A4
Authority
EP
European Patent Office
Prior art keywords
patient
biologic
cells
electrodes
biologic component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP05745286A
Other languages
German (de)
English (en)
Other versions
EP1747043A2 (fr
Inventor
Spencer Rosero
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Rochester
Original Assignee
University of Rochester
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Rochester filed Critical University of Rochester
Publication of EP1747043A2 publication Critical patent/EP1747043A2/fr
Publication of EP1747043A4 publication Critical patent/EP1747043A4/fr
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/362—Heart stimulators
    • A61N1/3629—Heart stimulators in combination with non-electric therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/37205—Microstimulators, e.g. implantable through a cannula
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/37211—Means for communicating with stimulators
    • A61N1/37252—Details of algorithms or data aspects of communication system, e.g. handshaking, transmitting specific data or segmenting data
    • A61N1/37288—Communication to several implantable medical devices within one patient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/375—Constructional arrangements, e.g. casings
    • A61N1/37512—Pacemakers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/375—Constructional arrangements, e.g. casings
    • A61N1/37514—Brain implants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/375—Constructional arrangements, e.g. casings
    • A61N1/3756—Casings with electrodes thereon, e.g. leadless stimulators

Definitions

  • Figs. 1 and 2 show the bio-electro-physiologic device 100 of the present invention.
  • the device 100 includes an electronics portion 110 and a biologic materials portion or matrix interface 130.
  • the electronics 110 include a power supply 112, capacitor 114, amplifier 116, controller 118, communication device 120 and optional wire connector 122, and electrodes or electrode array 124.
  • the biologic interface 130 includes two layers of cells 132, 134. However, the interface 130 can have any number of layers with various geometries, including one layer or multiple cell layers.
  • the electrodes 124 and/or sensors 125 can be mounted on a flat surface for a two- dimensional basic device, as shown in Fig. 1. Or, the electrodes 124 and/or sensors 125 can be mounted in a three-dimensional device with a lattice framework in which the electrodes 124 and/or sensors 125 are positioned anywhere and the cells grown in the lattice framework to maximize surface area contact and allow for nutrient/metabolic products to traverse the matrix.
  • the electrodes 124 and/or sensors 125 are built into the matrix architecture, so that the electrodes 124 and/or sensor 125 are integrated with the matrix interface 130.
  • the electrodes 124 and/or sensors 125 are connected to the controller 118 and amplifier 116 by micro-welding or by wiring that extends back to the controller 118 and amplifier 116.
  • the electrodes 124 and/or sensors 125 are positioned on the support and the collagen matrix introduced so that the cells grow on and around the electrodes 124 and/or sensors 125.
  • the support preferably has a lattice or crossing pattern to enhance the growth of cells on the support.
  • This device 100 does not require permanent long lead electrodes to be placed in the body tissue or vascular system. By combining cellular biologic sensors with microcircuitry, and eliminating the need for a lead, the device 100 is small and can be placed in areas that are not accessible by chronic lead placement techniques.
  • the device can have a wire 122 that networks together multiple devices 100, though networking can also be wireless.
  • the device can be placed transvenous as well as subcutaneous and/or within organs such as brain, gastrointestinal tract and central nervous system.
  • the sensing is done by the body's own cellular system to provides a response that is detected by the circuitry depending on tissue.
  • the ability to directly select the cell type to be used as sensors provides a small sensor since those cells can be used to sense or react to certain patient conditions without the need for additional sensors which can detect multiple substances within the body and have specific response features that can then be translated into useful information.
  • the cells are selected based on their ability to detect and respond to the physiologic signal of interest. For example, if a response to circulating chemical messengers such as catecholamines is required information, then skeletal muscle may be used. Accordingly, those cells eliminate the need for a separate sensor to detect the desired chemical messenger, h this setting, the muscle is biopsied from the arm or leg and placed into an environment that allows separation of the cells in an atraumatic fashion so as to minimize damage. The cells are then grow onto the device.
  • the site of growth includes direct contact with an array of electrodes or Micro-electromechanical devices.
  • the electrode array interface may be in a single plane or the electrodes distributed within a three-dimensional architecture so that the cells are in direct contact with a variety of electrodes. When the cell have matured and attached themselves to the electrode/MEMs, then the device is prepared for implantation within the same person from whom the cells were obtained. This minimizes scar formation and rejection.
  • the device may also be placed within a vessel in direct contact with blood, or within other tissue such as adipose (fat) tissue, muscle, or specific organs including the spine and nervous system.
  • the device can monitor the integrated biologic tissue (biopsied and grown cells) and notice if there is a change in electrical activity of the cell, increased contraction or stretch activity, or metabolic activity as it responds to the physiologic signal of interest.
  • the device 100 can be placed anywhere in the body, including the abdomen and brain.
  • the device 100 is preferably used as a wireless sensor and stimulator, but can also be used with existing devices such as pacemakers, ICD's, deep brain stimulator devices and pain control devices.
  • the device 100 can be formed in a tubular shape that is attached to the lead of a conventional pacemaker to operate as a sensor for the pacemaker, either as part of the lead or as an additional feature of the lead.
  • one or more devices 100 are implanted in a patient as remote sensors or electrodes that communicate with a controller to operate as a defibrillator, such as described in co-pending application serial number PCT/ entitled “Leadless Implantable Cardioverter Defibrillator” filed herewith, which claims priority to serial number 60/567,449 filed May 4, 2004.
  • the controller 118 can be used as a defibrillator to impart an electrical stimulation to the patient's heart.
  • the device 100 can be configured for use as a stent or have a stent-like shape and be integrated with electronics as described in co-pending application serial number PCT/ entitled "Leadless Implantable Intravascular Electrophysiologic Device for Neurologic/Cardiovascular Sensing and Stimulation” filed herewith, which claims priority to serial number 60/567,447 filed May 4, 2004. The contents of each of these applications is incorporated herein by reference.

Abstract

L'invention concerne un dispositif implantable (100) comprenant un composant électronique (110) et un composant en matériaux biologiques (130). Celui-ci comprend des cellules cibles dans une matrice interfaçant le composant électronique avec le milieu ambiant.
EP05745286A 2004-05-04 2005-05-04 Matrice d'interface bio-electro-physiologique implantable Ceased EP1747043A4 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US56744704P 2004-05-04 2004-05-04
US56744804P 2004-05-04 2004-05-04
US56744904P 2004-05-04 2004-05-04
PCT/US2005/015380 WO2005107863A2 (fr) 2004-05-04 2005-05-04 Matrice d'interface bio-electro-physiologique implantable

Publications (2)

Publication Number Publication Date
EP1747043A2 EP1747043A2 (fr) 2007-01-31
EP1747043A4 true EP1747043A4 (fr) 2008-04-23

Family

ID=38258383

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05745286A Ceased EP1747043A4 (fr) 2004-05-04 2005-05-04 Matrice d'interface bio-electro-physiologique implantable

Country Status (4)

Country Link
US (3) US8849416B2 (fr)
EP (1) EP1747043A4 (fr)
CA (1) CA2565624A1 (fr)
WO (1) WO2005107863A2 (fr)

Families Citing this family (105)

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US20120041289A1 (en) 2012-02-16
US20080269814A1 (en) 2008-10-30
US8849416B2 (en) 2014-09-30
US20060252976A1 (en) 2006-11-09
WO2005107863A3 (fr) 2006-05-18
EP1747043A2 (fr) 2007-01-31
WO2005107863A2 (fr) 2005-11-17
CA2565624A1 (fr) 2005-11-17

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